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Determination of thermal diffusivity of montmorillonite containing silver nanoparticles

R. ZAMIRI1,* , Z. AZMI1, M. B. AHMAD2, M. DARROUDI3, K. SHAMELI2, M. A. MAHDI4

Affiliation

  1. Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
  2. Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
  3. Advanced Materials and Nanotechnology Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia.
  4. Department of Computer and Communication Systems Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia

Abstract

The thermal lens (TL) technique is used to study thermal diffusivity of silver nano-fluid containing silver nanoparticles (AgNPs) of a particular size from about 30.5 to 4.2 nm at Montmorillonite (MMT) as an inorganic matrix in aqueous solution. In this technique a diode laser (wavelength 514 nm, power 80mW) and intensity stabilized He-Ne laser were used as the excitation source and probe beam, respectively. Experimental results showed that the thermal diffusivity values of nanofluids decreases when the particle size of Ag-NPs decreases..

Keywords

Thermal diffusivity, Nano-fluids, Thermal lens, Montmorillonite, Silver nanoparticles.

Submitted at: March 20, 2010
Accepted at: May 26, 2010

Citation

R. ZAMIRI, Z. AZMI, M. B. AHMAD, M. DARROUDI, K. SHAMELI, M. A. MAHDI, Determination of thermal diffusivity of montmorillonite containing silver nanoparticles, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 5, pp. 1083-1086 (2010)